标題: 3D-printed mechanically strong and extreme environment adaptable boron nitride/cellulose nanofluidic macrofibers

作者: Yu, L (Yu, Le); Gao, TT (Gao, Tingting); Mi, RY (Mi, Ruiyu); Huang, J (Huang, Jing); Kong, WQ (Kong, Weiqing); Liu, DP (Liu, Dapeng); Liang, ZQ (Liang, Zhiqiang); Ye, DD (Ye, Dongdong); Chen, CJ (Chen, Chaoji)

來源出版物: NANO RESEARCH DOI: 10.1007/s12274-023-5383-x 提前訪問日期: FEB 2023

摘要: Fibrous nanofluidic materials are ideal building blocks for implantable electrode, biomimetic actuator, and wearable electronics due to their favorable features of intrinsic flexibility and unidirectional ion transport. However, the large-scale preparation of fibrous nanofluidic materials with desirable mechanical strength and good environment adaptability for practical use remains challenging. Herein, by fully taking advantage of the attractive mechanical, structural, and chemical features of boron nitride (BN) nanosheet and nanofibrillated cellulose (NFC), a scalable and cost-effective three-dimensional (3D) printed macrofiber featuring abundant vertically aligned nanofluidic channels is demonstrated to exhibit a good combination of high tensile strength of 100 MPa, thermal stability of up to 230 ?, and ionic conductivity of 1.8 x 10(-4) S/cm at low salt concentrations (< 10(-3) M). In addition, the versatile surface chemistry of cellulose allows us to stabilize the macrofiber at the molecular level via a facile post-cross-linking method, which eventually enables the stable operation of the modified macrofiber in various extreme environments such as strong acidic, strong alkaline, and high temperature. We believe this work implies a promising guideline for designing and manufacturing fibrous nanodevices towards extreme environment operations.

作者關鍵詞: three-dimensional (3D) printing; nanofluidic; boron nitride; cellulose; macrofiber

地址: [Yu, Le; Huang, Jing; Chen, Chaoji] Wuhan Univ, Sch Resource & Environm Sci, Hubei Biomass Resource Chem & Environm Biotechnol, Wuhan 430079, Peoples R China.

[Gao, Tingting] Donghua Univ, Coll Text, Key Lab Text Sci & Technol, Minist Educ, Shanghai 201620, Peoples R China.

[Mi, Ruiyu] China Univ Geosci, Sch Mat Sci & Technol, Beijing Key Lab Mat Utilizat Nonmet Minerals & Sol, Natl Lab Mineral Mat, Beijing 100083, Peoples R China.

[Kong, Weiqing] Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China.

[Liu, Dapeng] Tongji Univ, Interdisciplinary Mat Res Ctr, Sch Mat Sci & Engn, Shanghai 201804, Peoples R China.

[Liang, Zhiqiang] Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Peoples R China.

[Ye, Dongdong] Wuyi Univ, Sch Text Mat & Engn, Jiangmen 529020, Peoples R China.

通訊作者地址: Chen, CJ (通訊作者)，Wuhan Univ, Sch Resource & Environm Sci, Hubei Biomass Resource Chem & Environm Biotechnol, Wuhan 430079, Peoples R China.

電子郵件地址: chenchaojili@whu.edu.cn

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